output, and drug abuse), allowing for the development of models of various gender
groups, territories, age groups, and infections down to minute biological differences,
advancing the advancement of precision health (Van Den Berg et al. 2019).
The resolution of this question is yet to be established: despite advancements in
organ-on-chip models, whether organ workable reproduction is limited by cell
source. Researchers described the substantial difficulties in culturing human primary
alveolar and epithelial type II cells (Shiraishi et al. 2019; Weiner et al. 2019).
Because of the limited number of primary cells and need of expanded supply, the
organ-on-chip method increases cost and makes the technology more difficult to
spread to the general population. Many bio-on-chip devices are made with
polydimethylsiloxane (PDMS). PDMS chips can be carefully mounted on a conven-
tional incubator and optical microscopes for use with cell culture. It was argued that
that PDMS blocks the effect of the supplement, while enhancing the involvement of
the protein, and has many limitations in its use (Wang et al. 2017a, b).
6.9
Future Scope
‘Lab-on-a-chip’ and ‘multi-organs-on-a-chip’ are two recent developments in
microfluidic-based computer manufacturing. Several of those microfluidic-based
programs have been designed in recent years with the goal of improving in vitro
and in vivo prototype predictability. Furthermore, when compared to traditional cell
culture methods like flask culture, dish culture, and well plate culture, the
microfluidics-based cultured cell study claims a thorough insight into the interaction
between cell culture variables and microenvironmental aspects that traditional cell
culture methods lack. Microfluidics’ flexible multifunctional characteristics, such as
accurate positioning over microenvironmental components, provide new avenues for
next-generation drug development.
The development of a ‘human-on-a-chip’ is critical because animal models in
investigation and the healthcare industry will eventually be replaced. The ‘human-
on-a-chip’ technology allows for expansion without the need for external assistance
by adding more fully functional tissues. A truly autonomous approach, according to
this proposal, requires that each tissue be capable of performing its physiological
function adequately. To begin, extended cell viability must be maintained. In vivo
studies of the interaction between tissues and microfluidic channels are required.
The electrochemical biosensors are being integrated into human-on-chip
environments, which is a rising practise in the design world of electronic
components. Physiological and physical implementations must be considered
when designing the system, including suitable flow parameters, and biochemical
equations are necessary. As with all experiments, these in vitro models should be
understood within the context of their limitations.
Advanced and state-of-the-art research has made us closer to human-on-a-chip
technology, as well as sensors for detecting various drugs and hormones. Thus, it
was possible to demonstrate that the biophysical environment plays a critical role in
assisting sperm in reaching the egg through the construction of a woman’s
6
Organ-on-a-Chip: Novel In Vitro Model for Drug Discovery
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